User Guide

C
-
4 Optimizin
g
a Netlist-Based Desi
g
n
To make the parameter definition in the .par file
available to PSpice
1
Insert a .INC command anywhere after the first line of the
circuit file using the syntax:
.INC parameters_file_name
where parameters_file_name is the same file in which you
entered the .PARAM statements for the circuit.
Example: To
myamp.cir, add the following statement
anywhere after the first line in the file:
.INC “myamp.par”
Settin
g
Up and Runnin
g
the PSpice Optimizer
Before optimizing, you need to define for the PSpice Optimizer
all of the parameters declared in the circuit file, and the goals
and constraints. Setup is exactly the same as for a schematic-
based design.
To complete setup and optimize the desi
g
n
1
Activate the PSpice Optimizer by doing one of the
following:
• From the Windows 95 Start menu, select the MicroSim
program folder and then the PSpice Optimizer shortcut.
• From the Windows 95 Start menu, select Run, enter the
command line for
optimize.exe, and click OK.
2
Add a parameter definition for each of the parameters used
in the circuit file:
a
From the Edit menu, select Parameters.
b
Click Add.
c
Fill in the dialog box.